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Snapper
Gas Walk-Behind Mower

Model # 5900702 Official Snapper sw20 series mower

Here are the diagrams and repair parts for Official Snapper 5900702 sw20 series mower, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 298 parts  |
Switch 5022180
#13

Handle bar/instrument control diagram

Switch

Part #5022180

Replaced by #1722887SM

?
Manufacturer substitution
This part replaces 5022180. Substitute parts can look different from the original.
$37.79 | 
14% OFF Phone Price : $43.79
In Stock
Wheel 1714760
#5

48" mower deck-rollers diagram

Wheel

Part #1714760

Replaced by #1714760SM

?
Manufacturer substitution
This part replaces 1714760. Substitute parts can look different from the original.
$10.77 | 
16% OFF Phone Price : $12.77
In Stock
Washer 5025154
Washer

Part #5025154

Replaced by #703332

?
Manufacturer substitution
This part replaces 5025154. Substitute parts can look different from the original.
This item is not returnable
$7.09 | 
12% OFF Phone Price : $8.09
In Stock
Fan, 7 , 10 5101026X6
#120

Transmission service parts diagram

Fan, 7 , 10

Part #5101026X6

$44.11
In Stock
Spindle Cap 5100882
#12

Front frame diagram

Spindle cap

Part #5100882

$11.94
In Stock
Tire Assm, 9 5021181S
#1

Tire and wheel diagram

Tire assm, 9

Part #5021181S

Replaced by #5021181SSM

?
Manufacturer substitution
This part replaces 5021181S. Substitute parts can look different from the original.
$129.12
In Stock
Nut 5025029
#5

Engine deck diagram

Nut

Part #5025029

Replaced by #703895

?
Manufacturer substitution
This part replaces 5025029. Substitute parts can look different from the original.
$7.77
In Stock
Bearing 5023330
#6

36"/48" mower deck-spindle diagram

Bearing

Part #5023330

Replaced by #5023330SM

?
Manufacturer substitution
This part replaces 5023330. Substitute parts can look different from the original.
$33.24
In Stock
Collar 5020047
Collar

Part #5020047

Replaced by #5020047SM

?
Manufacturer substitution
This part replaces 5020047. Substitute parts can look different from the original.
$13.20
In Stock
Bolt 5025013X28
Bolt

Part #5025013X28

Replaced by #5025013X28SM

?
Manufacturer substitution
This part replaces 5025013X28. Substitute parts can look different from the original.
$8.89
In Stock

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

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Why does my lawn mower vibrate a lot?

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

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Why does my lawn mower cut unevenly?

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

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Why does my lawn mower run rough?

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

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Why won't my lawn mower move?

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

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Why won't my lawn mower start?

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

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Why does my lawn mower stall?

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

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Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

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How to rebuild a lawn mower carburetor

How to rebuild a lawn mower carburetor

The carburetor mixes air with fuel to drive the piston. Rebuild the carburetor if it's clogged or leaks.…

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Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower recoil starter on an OHV engine

How to replace a lawn mower recoil starter on an OHV engine

Replace the recoil starter if it doesn't move when you pull the starter rope.…

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Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower wheel

How to replace a lawn mower wheel

Learn how replace a damaged wheel on a walk-behind lawn mower—it's a quick, easy fix.…

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Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your walk-behind mowers

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

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How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

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Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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Types of walk-behind mower blades video

Types of walk-behind mower blades video

Learn about the different kinds of mower blades and how to maintain them.…

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